50.0000.000
An estimate for the quotient of a division problem involving decimals is sometimes less than the actual quotient. This can occur when rounding the dividend or divisor down, which may lead to a smaller estimated result. However, if rounding leads to higher values, the estimate could be greater than or equal to the actual quotient. Therefore, the relationship between the estimate and the actual quotient depends on the specific numbers and how they are rounded.
Not in this case.
20.4211
Rounding the weights to 10 lb and 60 lb gives an estimated total weight of 70 lb. Using compatible numbers by rounding to 9 lb and 60 lb, the estimated total weight is 69 lb. The estimate using compatible numbers (69 lb) is closer to the actual total weight of 71.6 lb.
Use rounding and estimation to predict the approximate quotient of 285 ÷ 11.
You can calculate 3444 times 670 without rounding or you can estimate it WITH rounding. But you cannot estimate it without rounding.
Compatible numbers would be easier. Rounding gives you 14 x 47. Compatible numbers could be 13 x 50 which would be closer to the actual product.
To estimate a quotient, one common method is rounding the dividend and divisor to the nearest convenient numbers, which simplifies mental calculations. Another approach is using compatible numbers, where the divisor is adjusted to a number that divides the dividend more easily. Additionally, long division can be used for a more precise estimate, while recognizing patterns in division can also aid in quick estimates. Each of these methods allows for quicker approximations without requiring exact calculations.
rounding numbers is to nearest ten or hundred and compatible numbers are when you can do nearest 5
9 + 63 = 72 lbs.
25.9091
9+63+863+9